Source : Webster's Revised Unabridged Dictionary (1913)

Furfurol \Fur"fu*rol\, n. [L. furfur bran + oleum oil.] (Chem.)
   A colorless oily liquid, {C4H3O.CHO}, of a pleasant odor,
   obtained by the distillation of bran, sugar, etc., and
   regarded as an aldehyde derivative of furfuran; -- called
   also {furfural}.